Why Choose the Pizzato CS AM12F1XU-P8 Safety Module?
The Pizzato Elettrica CS AM12F1XU-P8 is a dedicated motor standstill detection safety module from the CS AM Series, designed for machinery where hazardous access or another safety-related function must depend on the verified stopped condition of an electric motor. The module uses sensorless monitoring of residual voltage generated by the motor, allowing standstill to be detected without requiring an external speed sensor for the primary safety function.
Designed for demanding machine-safety systems, the CS AM12F1XU-P8 supports applications up to Category 4, SIL 3 and Performance Level PL e. It operates from a standard 24 V DC supply and provides 3 normally open safety relay contacts, enabling integration with compatible guard-locking, machine-access and safety-control circuits.
This non-programmable CS AM12 version uses a connector with spring terminals for efficient control-panel wiring. The module supports motor standstill monitoring with compatible single-phase and three-phase motors, provides 10 residual-voltage detection sensitivity levels and incorporates galvanic separation between its control and motor measuring circuits.
Key Advantages
- Dedicated motor standstill detection for machine-safety applications.
- Suitable for safety systems up to Category 4, SIL 3 and PL e.
- Sensorless residual-voltage monitoring avoids the need for an external speed sensor for the standstill safety function.
- 3 NO safety relay contacts for integration with compatible machine-safety circuits.
- Standard 24 V DC supply for industrial control panels.
- 10 detection sensitivity levels for residual voltage on the motor phases.
- Supports compatible single-phase and three-phase motors.
- Connector with spring terminals provides fast and secure field wiring.
Key Features
- Pizzato Elettrica CS AM Series motor monitoring safety module.
- Motor standstill detection safety function.
- Designed for applications up to Performance Level PL e.
- Designed for applications up to SIL 3.
- Designed for applications up to Category 4.
- 3 normally open safety relay contacts.
- 24 V DC supply voltage.
- Non-programmable configuration.
- Connector with spring terminals.
- Sensorless residual-voltage monitoring.
- 10 levels of motor residual-voltage detection sensitivity.
- Compatible with single-phase and three-phase motor measuring circuits.
- Galvanic separation between the control and measuring circuits.
- 45 mm wide housing for industrial control-panel installation.
- Suitable for guard locking and safety-related machine-access applications.
How Motor Standstill Safety Monitoring Works
Motor standstill monitoring is used where a machine-safety function depends on dangerous motor movement having stopped. The Pizzato CS AM1 Series determines motor standstill by monitoring the residual voltage generated on the motor phases while the motor continues to rotate, including movement caused by inertia after power has been removed. This allows the safety system to evaluate the actual motor condition rather than relying only on the state of the motor supply.
The CS AM12F1XU-P8 provides 10 residual-voltage sensitivity levels and galvanic separation between the control and measuring circuits. Once the monitored motor condition satisfies the required standstill criteria, its 3 NO safety relay contacts can be used by the associated safety circuit to permit an appropriate machine function, such as guard unlocking, when the complete system has been designed and validated accordingly.
Typical Applications
- Motor standstill monitoring in industrial machinery.
- Guard-locking safety systems.
- Machine access control after hazardous movement has stopped.
- Rotating machinery and motor-driven equipment.
- Machine tools and machining centres.
- Packaging and production machinery.
- Conveyor and material handling systems.
- Industrial mixers and processing machinery.
- Maintenance access interlocking.
- Safety circuits requiring verified motor standstill before operator access.
